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A new Higgs effective field theory and the new no-lose theorem
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Non-decoupling effects of heavy new particles cannot be described by the standard effective field theory with finite truncation of higher dimensional operators. We propose a new effective field theory in which non-decoupling quantum effects of new physics are correctly described. We discuss vacuum stability and perturbative unitarity in our effective field theory, and we find that the scale of new physics can be estimated if we will observe the Higgs coupling deviation via non-decoupling effects in future collider experiments.
Forward citations
Cited by 3 Pith papers
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The Potential of HEFT and the scale of New Physics
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High Energy Vector Boson Scattering in Four-Body Final States to Probe Higgs Cubic, Quartic, and HEFT interactions
With modified Higgs potentials, 2-to-4 vector boson scattering has unitarity violation scales around ten times lower than 2-to-3 scattering and can overtake its cross section at parton energies of a few TeV.
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Super-critical primordial black hole formation via delayed first-order electroweak phase transition
Delayed first-order electroweak phase transitions can form super-critical primordial black holes, and a timescale ratio t_H/t_V captures the threshold better than the standard density contrast.
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